公开(公告)号：US4592662A

公开(公告)日：1986-06-03

申请号：US600787

申请日：1984-04-16

申请人： Eric J. Robbins ,  Alan M. Clayton ,  William P. White ,  Robert E. Leckenby

发明人： Eric J. Robbins ,  Alan M. Clayton ,  William P. White ,  Robert E. Leckenby

IPC分类号： G01N3/00 ,  G01N3/02 ,  G01N3/18 ,  G01N3/60 ,  G01N25/72

CPC分类号： G01N3/60 ,  G01N3/18 ,  G01N2203/003 ,  G01N2203/0037 ,  G01N2203/0066 ,  G01N2203/0228 ,  G01N2203/0242 ,  G01N2203/0266 ,  G01N2203/027 ,  G01N2203/0274

摘要： Equipment for investigating crack propagation in thick steel plates of a material with applicability for pressure vessels comprises a test specimen in the form of a hollow cylinder of the material under investigation, a vertical spindle from which the hollow cylinder is suspended and which can be rotated at a speed of the order of thousands of revolutions per minute, damping means for damping against flexural resonance vibrations of the cylinder and spindle, a container for the cylinder and means for supplying hot air to the container via a port, means for applying through a port in the container, a jet of cold fluid on to a surface of the cylinder to apply thermal shock thereto the spindle being hollow to accommodate leads from instrumentation on the cylinder to a slip ring unit from which leads to control and recording equipment extend, the instrumentation serving to monitor crack propagation under the conditions of high speed revolution which induce a hoop stress in the material approaching its yield strength, and the thermal shock applied thereto.

摘要翻译： 用于调查在适用于压力容器的材料的厚钢板中的裂纹扩展的设备包括被测试材料的中空圆筒形式的试样，垂直心轴，中空圆柱体从该主轴悬挂并可以在 速度为每分钟转数千次，用于缓冲气缸和心轴的弯曲共振振动的阻尼装置，用于气缸的容器和用于经由端口向容器供应热空气的装置，用于通过端口施加的装置 在容器中，将冷流体喷射到气缸的表面上，以对其进行热冲击，其中心轴是中空的，以容纳来自气缸上的仪器的导线到由控制和记录设备引导的滑环单元延伸，仪器 用于在材料应用中引起环向应力的高速旋转条件下监测裂纹扩展 拉伸其屈服强度和施加于其上的热冲击。